Illihois



"Feb 27, 1923. f y 7 l 1,447,047.

c. K. sElEmEn. CHANGE SPEED GEARNG AND REVEHSING DEVICE.

FILED APR. 204 1921.

Q o L -Q Eig@ Patented Feb. 27, 1923.

CLARENCE msm entraran,

er ennrvinnn, immers. l

i omiten-SPEED ennaiirs nim nnvnnsine nrzvren.A

Application filed april 2G,

To allwom t may concern.' A n Be it known that l, CLARENCE insr Sni- FRIED, a citizen of the United States, residing at Grayville, in the county of White in the State of illinois, have invented cer tain new and useful Improvements'- in Change-Speed Gearing and Reversing De'- vices, of which the following visa.specification.

This invention relates to improvements in change speed and reversing: gears. of the class requiring one operator only to produce the different changes, and has vfor one ot' its objects to simplify and improve the construction and increase the e'iiciency and. utility of devices of this character.

Another object of the invention. is to provide a device of this character having means under the control of the operator for changing the speed, or reversing' thel motion by manipulating a system of leversfrom his position, for instance on the drivers seat of a motor driven vehicle. v

TWith these and other objects `in view the invention consists in certain novel ieatures of construction as hereinafter shown and described and then specifically pointed out in the claim, and in the drawings illustrative of the `preferred embodiment of the invention.

Figure 1 is a plan view apparatus. v

Fig. 2 is a plan View with the cover of the casing removed.

Fig. 3 is an end elevation of the improved apparatus with@ the casing and the shafts and guide rod in section on the line 3 3 of Fig. 2. .l

Fig. 4: is a rear elevation ywithv the casing in section on the line 1 -4 of Fig. 3 looking in the direction of the arrow.

F ig. 5 is a front elevation with the casing in section on the line 5-5 oi? in the direction of the arrow.

The improved device may be employed wherever a change speed and reversing gearing is required, but is more particularly designed for use in connection with motor driven vehicles of the tractor class, and comprises an enclosing casing preferably supported upon rail members l11, and pro` vided with a'detachable cover 12.

A drive shaft 13 and a. driven shaft. 11 are supported for rotation through the casing 10. y

hounted on the driven shaft 14 are gears of the improved Fig. 2 looking` i ard 27.

the standard 28 be moved e e directiomthe gear22willbe engaged with y i921.; semina. fieaeau.y Ii' 1 5 and 16 of Ydiqerent diameters.` Sldable. on the shaft 13 and rotative therewith"as by a feather and key deviceot'"the lusual construction, isa shifterx'sleeve 17 having` a relativelyl small-gear l1&2 engageable withk the largergear 15 ofthe diierential device i when the sleeve is in i larger gear 19l engageable withftheismaller gear 16 when the 'sleeve is initsotlfierf-position. By this means- .thegspeed scan'-"bequickly changed by. lshitting 9 the jsl'eeve 1T v and its coacting gears 18 and y19, aswill be one position,y and a obvious.v Slidable konxthe shaft' 13 yand'rotative therewith by' a featherf'andlrey de-` vice, is a relatively'small gear'20.-H-EXtend-' ing between the ends ofthefcasing 10 is a guide rod 2l, and slidableon the rod.. is a larger gear 22.*incon'stant 'engagement with the smaller gear'-20.` The shaft'13 'andfrod 21 are coupled by bars -23 at eachside ot, the gears and 22, so that the-gears are` moved together. when a a suitable means is shown for producing the requisite movement, consisting `in aA bellv crank lever pivoted 'at its elbow fat-31 to the covery 12 and with a -shifting rod 32v pivoted atene end to one arm of the lever 30 and leading to a point convenient yto the driver on thel seat of the vehicle. The other arm of the lever 3Q is coupled to the stand- By .this arrangement it will be obvious that when the rod 32 `is adjusted to dispose. the standard e e sition, thev gear 18 will be engaged with the larger gear 15 and .produce slow (ar-low speed. If'the standard 27 is moved in one direction,` the ylarger gear v19` will be en'- 27 vin itscentral or neutral pof shipper --device is applied, for instance to the bars'23. y

gaged' with `the smaller gear` 16 .and thusl 7 produce greater or high speedfs-Then'it the ,larger gear 15 and reverse the motion. by reason of the interposed idler. gear 20. which -is smallenoughv to `passthe gear '15.

in the .opposite` `Without. engaging with it, but perii'iitting the gear-22 .to engege the geur l5.

By this arrangement the gears 1S, '19, 20 and 22 may be Simultaneously slii'tec'llongi- Ending-1157 of the shaft 13 land rod 2l by power applied to the-.shifter rofl 9.2.

The improved device is simple in con-- struction, can be inexpensiveiy menufe-etured and oper-aies eeetueliy for the pur- `poses described.

The preferred embodiment ef :the invention isdiseoseffi in the cirewinge and set VJOrth-in the speeiiczwioil, bui; ir, wi i bekundersteocitiiae iii@ mariene wiliiri `drie scope ofthe eieiiii may be ii'ieriev infr-'rie e011- Strueioii Without depering 'ii iii the prineipie ofthe-invention erseemieiiig :my oi' its advantages.

That l Gleim, is:-

n-en apparatus 0f the dass described, a

simultaneously .ae'ueted driveI shaftedepeed robe-rotated and Gerrying .gear Wheelsfoif -`fiir'zrenu .-dieiileters, l counter shaft adapted to be rotated, a sleeve siidable onrsaid counter-shaft and rotative there-With,' geers'ef'dierent diameters earcoupling the counter .shaft eend .,guidegrod and supporting. 1iiegeers of r thexeeiiie, and eeupling, means between s.a1...z1rmsend sleeve Whereb-T .the arras zuid sleeve;` maybe rmestimeny. whereof, I aiiirr: my- 'signature hereto.

. CLARENCE; SELFR-ED. 

